Pedal for bicycles



April 28, 1925.

J. H. GRAHAM PEDAL FOR BICYCLES Filed June 9. 192A Inuevvfinv J'anzeafl. Grakaaw,

Patented Apr. 28, 1925.

"IUNITEID STATES JAMES GRAHAM, or Toss-1mm, CONNECTICUT.

' PEDAL Fort IoYoLEs.

Application filed'fIune 9,

To all whom it may mom:

Be it known that I, JAMEs' Hf GRAHAM, a citizen of the United States, residing at Torrington, in the county of Litchfield and State of Connecticut, have invented certain new and useful Improvements in Pedals for Bicycles, of which the following is a specificat-ion.

My inventionrelates to pedals for bicycles and the like. y y

The objects of the invention are to provide a simple and effective means of holding the pedal upon its spindle and to form the spindle free from machined cone's'to thereby save expense in manufacture.

Fig. 1 is 'ahorizontal section tlirougha pedal provided with my improvements.

Fig. 2 is a perspective of the pedal spindle, the struck up cones, the friction rivet or headed securing pin and the washer. The spindle 1 is formed at its inner end with an enlarged annular collar 2, and the usual threaded extremity 3, for connection with a pedal crank. This collar 2 is squared, as at 4, to permit a wrench to grasp and turn the spindle. The inner face 5 of the collar 2 is fiat and not formed with a cone in the usual manner so that no ma chining is necessary. This effects a great saving of expense and the spindle may be drop forged complete and merely threaded, as at 3. The opposite end of the spindle is simply bored to form a longitudinal elongated bore or recess 6 which completes the spindle.

The pedal frame comprises the opposite end plates 7 having the conical cups 9, swaged or formedthereon and these two cups are connected by the spindle inclosing tube 10. i

The cones 11, 11 in the cups 9 are struck up from sheet metal and slipped upon the spindle; no machining being required.

The cones 11 are simple disks dished on their outer sides, as at 12, which produces an annular inner ball-engaging channel 18 on the inner side. The outer cone 11 overhangs the outer end of the spindle 1 and against it rests a flat washer 14L loose upon a headed stud or rivet 15. This stud or rivet 15 is of slightly greater diameter than that of the bore or recess 6, so that the stud or rivet will, when driven into said bore 6,

remain tightly wedged therein against all ordinary strain and hold the pedal frame 1924. Serial No; 718,883.

driving the stud orrivet 15 further into force the washer'lt and outer cone 11 inwardly wear on'the balls and cones may be taken up. This headed stud or rivet 15 and bore 6 do away entirely with thesteps of reducing and screw threading the end of the spindle and the use of nuts thereon, thus'eii'ecting a great saving in the cost of manufacturing and also producing the simplest possible effective retaining means. Thepe-dal bars 20, 20 are secured between the end plates 7 7 in any desired manner and may be of any suitable construction.

ATENTxoiiFlcsgf A in placeon thespindle and also hold the" cones 11 and the balls 11 in place.- By

The sheet metal cones 11, 11 are free on the spindle andthere' is no chance of binding at any "point, so that a free turning pedal is the result. It will be seen that the spindle 1 is of the same diameter throughout, that is, from the collar 2 to its outer end, and the two cones 11, 11 are also of the same diameter and the two cups 9, 9 are likewise of the same diameter and connected by a non-tapered tube 10. In manufacturing these parts only one set of dies is necessary to produce the cones 11, 11, and only one set is necessary to produce'the cups 9 and standard tubing may be employed for the tube 10, thus effecting a great saving over a construction where cones of different size are employed and a tapering spindle is employed carrying a collar between its ends separatefrom the one on its threaded attaching end. a

In case of necessity therefor, the friction stud or rivet 15 may be forcibly withdrawn.

A guard and dust plate 30 is held removably on the outer fixed end plate 7 by the screws 23, 23 and is cupped between its ends, as at 31, to inclose the outer end of the spindle and outer cup 9.

Various changes may be made in the construction Within the scope of my invention.

. at its,attaehingrend anda longitudinalbore I ,In ts outer end, loose. conesilnounted onsa d Sp l 1:l,dle, th8 ,IQHQLL eone.. rest1ng against .said

tremity of ,the spindle and :engaging, said washeruto forceot ,toWards said outer cone.

g. A b

annular shoulder and the outer conelieing ,loose at,.-,the iouterend; ot' saidspindle; a

,.,sai d,, rlo os v,eones,,.a washerionthe outer end lriyen into saidbore with its head engagpedal frame lnounteduto turnon the spindle and,hayingginner zU1d l1tlKClTPS opposed to of the spindle, and a headed; friction. pin.

ing the asher,

l ,In a brcyelepedal, a, rth a, threaded 1111181, end, an annular. collar .ljat the inner end otsaidnthreaded portion, the outer, endhav ng a. lon'gitudinalnbore, and ,a' .pedal franieaietaininej .headed D111 tot somewhat larger diameter than said bore spindle :=In testimony whereof adapted to be driven into and held in said bore by'friction.

5. A bicycle pedal or the like, comprising a spindle having an annular shoulder at itsattaching'end, struck up sheet metal cones. mounted loosely on the spindle next to said shoulder and nextto the outer end of thespindle ;-s-aid cones being inclined inwardly from their outer sides to form ball races on their inner sides, .a pedalwfraine mountedy on the axle andhavingcups at its ends opposing said loose cones;'ha lls betweeirthe cones and thecups, and mea-nsat the -outer end of -the spindle for retaining the pedal fran-ie thereon.-

6. A bicycle'pedalcomprising a spindle of even diameter throughout, formed atdts rattaehing end with a'eollai-"lia'ving 'a" fiat inner face, two struck up sl-Ieetim'etal cones ot the same size loose- 01 the spindle, the

inner-scone. restingma'gainst the flat face of said collar, ya-pedal frame including a straigl1t :tube provided' at its ends 'with-(')ppositely \i'acing cups otthe sa1ne-size,- balls between the cu-ps'a-nd cones, and means at the -outer e-nd of-thefl-s 'indle for holding, the pedal rt'i-tame'thereon affix my'signz ture.

hints II-I. GRAHAM. 

